Yagi Uad element diameter

Discussion in 'Wireless & RF Design' started by Robin Mitchell, Jun 25, 2016.

  1. Robin Mitchell

    Thread Starter Well-Known Member

    Oct 25, 2009
    732
    200
    Hi all,

    Doing some number crunching and wanted to ask if this was possible:
    I have a required element diameter of ~2cm (I am looking at the 130MHz range) and wondered if it is possible to use a metal pipe (like copper), instead of a solid conductor?

    All the best,
    Robin
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,647
    2,346
    Hello Robin,

    Have a look at how the 2 meter antennas are constructed in the links of this page:
    http://ac6v.com/antprojects.htm
    (for your information the 2 meter amateur band is from 144 to 146 Mhz).

    Bertus
     
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  3. tracecom

    AAC Fanatic!

    Apr 16, 2010
    3,869
    1,393
    Sure, most commercially manufactured yagis use aluminum tubing. Don't forget that the larger the diameter of the elements, the wider the bandwidth will be. Google RF skin effect.
     
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  4. GenJacks

    New Member

    May 15, 2016
    6
    2
    I guess it is possible and I agree that you can try using aluminum tubing. :)
     
  5. KL7AJ

    AAC Fanatic!

    Nov 4, 2008
    2,040
    287
    It certainly is. Copper's an even better conductor than aluminum. The problem is its strength to weight ratio is a lot less, so you'll end up with a heavier antenna...which might not be a problem on 2 meters/
     
    Last edited: Jul 5, 2016
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